It is created by combining MMA Gloves and a handgun. The blueprints are found on stage in Bibi's Box and can be found when rescuing Annie during Chapter 7. It is a pair of gloves with gun barrels on each finger. The bullets are fired through the finger barrels.

The Jazz hands are excellent at both dealing with large crowds of zombies and giving a large amount of PP, because it can fire 8 medium damage projectiles in different directions and with rapid a fire rate.

Creating the Jazz Hands 50 times cumulatively across all playthroughs is required for the Jazz Hands!!! PP trial.

Hip-Fire: Pressing will cause Nick to twitch his Jazz Hands which results in a crooked trajectory at long range but still deadly at close range.

Bullet Storm: Pressing / + will cause Nick to use both Jazz hands and will fire them at full auto while spinning around slowly 4 time before stopping. This move is quite useful for creating enough breathing room to craft a combo weapon.

Dual Wielding: While walking (without aiming), pressing or holding will point both guns in front of Nick and he can rapidly fire as he walks. He will fire directly in front of him. If is held, Nick will fire until the button is let go of. While held, he will fire in a sweeping motion in front of him. This only works while walking, and not while running.